20374420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2503}}^1$

素因数の和:2560

約数の個数: 48

約数和(自身を含む): 47956608

約数和(自身を除く): 27582188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2503, 4070, 5006, 8140, 10012, 12515, 25030, 27533, 50060, 55066, 92611, 110132, 137665, 185222, 275330, 370444, 463055, 550660, 926110, 1018721, 1852220, 2037442, 4074884, 5093605, 10187210, 20374420]

約数ペア:

[(1, 20374420), (2, 10187210), (4, 5093605), (5, 4074884), (10, 2037442), (11, 1852220), (20, 1018721), (22, 926110), (37, 550660), (44, 463055), (55, 370444), (74, 275330), (110, 185222), (148, 137665), (185, 110132), (220, 92611), (370, 55066), (407, 50060), (740, 27533), (814, 25030), (1628, 12515), (2035, 10012), (2503, 8140), (4070, 5006)]